816113497 has 2 divisors, whose sum is σ = 816113498. Its totient is φ = 816113496.

The previous prime is 816113461. The next prime is 816113513. The reversal of 816113497 is 794311618.

816113497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 734464201 + 81649296 = 27101^2 + 9036^2 .

It is a cyclic number.

It is not a de Polignac number, because 816113497 - 2²³ = 807724889 is a prime.

It is not a weakly prime, because it can be changed into another prime (816113437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408056748 + 408056749.

It is an arithmetic number, because the mean of its divisors is an integer number (408056749).

Almost surely, 2^816113497 is an apocalyptic number.

It is an amenable number.

816113497 is a deficient number, since it is larger than the sum of its proper divisors (1).

816113497 is an equidigital number, since it uses as much as digits as its factorization.

816113497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 816113497 is about 28567.7002399563. The cubic root of 816113497 is about 934.5090684414.

The spelling of 816113497 in words is "eight hundred sixteen million, one hundred thirteen thousand, four hundred ninety-seven".